Agent Passport
A Sato Hub profile and manifest for a running agent, registered by proving control of its wallet key. Self-reported except where a named check says otherwise.
An Agent Passport is the registry entry for a running agent — as opposed to the directory, which lists what agents are built from. It has a public page, a versioned JSON manifest, and an embeddable badge. Registration is instant when the registrant signs a challenge with the agent's wallet key; unsigned registrations wait for review.
The passport surfaces what Sato Hub could check by reading public sources: whether the wallet holds an ERC-8004 registration on any of the covered chains, whether a declared MCP endpoint answers, whether an A2A card resolves, whether the wallet appears as an x402 payee, and on-chain activity per chain. Each check names its method; the checks are re-run on a schedule and their history is kept.
A passport is not an endorsement and a signature proves the key, not the product. Verification status stays Self-Reported; contact details are never public; payment fields are metadata. The badge says Registered, never Verified.
Where Sato Hub measures it
Numbers live on those pages and refresh on their own schedule; this definition does not restate them.
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Sato Hub. "Agent Passport (glossary)." Sato Hub, updated 2026-10-24, accessed 2026-10-24. https://satohub.ai/glossary/agent-passportData last refreshed 2026-10-24; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.